XHAILe

The XHAILe Grand Solutions project brings together leading Danish researchers in law, language technology, AI and computational law and providers of digital public administration and legal tech software, to develop accurate and explainable Hybrid-AI solutions that combine efficient AI-based translation of law to an open computational law rule format and a conversational agent using a rule engine via an open API. Here come trustworthy, new legal benchmarks and guidelines for the use of the technology. The results will be evaluated and demonstrated on use cases from local and central government.
The project is a part of:
- Section for Software, Data, People & Society, Department of Computer Science, Copenhagen University
- Section for Artificial Intelligence
- Language Technology and computational linguistics and the Centre for Language Technology, Department of Nordic Studies and Linguistics, Copenhagen University
- Section for Software Systems Engineering, Department of Applied Mathematics and Computer Science (DTU Compute), DTU
- Centre of Excellence for International Courts and Governance, Faculty of Law, Copenhagen University
- Department of Computer Science, Copenhagen University
- Faculty of Law, Copenhagen University
- Department of Nordic Studies and Linguistics, Copenhagen University
- Department of Applied Mathematics and Computer Science (DTU Compute), DTU
- DCR Solutions
- Local Government Denmark
- TietoEvry
- Søren Debois, DCR Solutions
- Morten Marquard, DCR Solutions
- Mark Straarup, DCR Solutions
- Panos Keramidis, DCR Solutions
- Håkon Normann, DCR Solutions
- Ghita Thiesen, KL
- Jim Foli, KL
- Jakob Eiby, KL
- Leif Stougaard, Tietoevry
- Michael Gøtze, LAW UCPH – Chair
- Irina Alex Shklovski, UCPH
- Bolette Sandford Pedersen, Professor, Deputy Head of Department of NoRS,
- Alberto Lluch Lafuente, Professor, Head of Section, DTU Compute
- Ghita Thiesen, Head of Office, IT-architecture and Standards, KL
- Morten Marquard, COE DCR Solutions
- Leif Stougaard, Head of Sales, Tietoevry
- Dan Bjørneboe, Chief consultant, Copenhagen Municipality
- Mikkel T. Jakobsen, Head of office, KoncernIT, Copenhagen Municipality
- Signe Rønn Sørensen, Health and Care, Århus Municipality
- Eva Maria Knudsen, Chief consultant, Digitalization and workflows, Odense Municipality
- Carsten Nydam-Rønved, Chief consultant, Digitalization and economy, Odense Municipality
- Isabel Vittrup-Pallier, AI-specialist, Gentofte Municipality
- Monica J. Strand, Senior officer, DIGDIR Norway
- Stine Nygaard Kjerulf Hansen, Adm. officer, Secretariat for digital-ready legislation, Danish Agency for Digital Government
- Kristoffer N Olsen, Subject Matter Expert, Digital Law
- Cecile Guasch, Subject Matter Expert, Digital Law and Interoperability
- Monica Palmirani, Professor, University of Bologna, Italy
- Lilja Øvrelid, Professor, University of Oslo, Norway
- Malcolm Langford, Professor, University of Oslo, Norway
- Jackie Cheung, Professor, McGill University & Mila, Montreal, Canada
- Hajo Reijers, Professor, Utrecht University, Netherlands
- Gerardo Schneider, Professor, Chalmers University, Gothenburg, Sweden
- Alexandra Andhov, Professor, University of Auckland
- Nils Høgsted, Danmarks Miljøportal
- Jesper Nørgaard Reumert, The Danish Property Assessment Agency
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Varvoutas, K., Neuberger, J., & López, H. A. (2026). A Neuro-symbolic Framework for Compliance Management with Declarative Models. In International Conference on Advanced Information Systems Engineering - Workshops(pp. 277-290). Springer, Cham.
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Zhou, Y., & López, H. A. (2026, April). A Compositional Approach to Mapping BPMN to DCR for Cross-Paradigm Process Modeling. In Proceedings of the IEEE/ACM 14th International Conference on Formal Methods in Software Engineering (pp. 95-106).
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Lindner, J., & López, H. A. Discovering Declarative Processes in Textual Descriptions using Large Language Models. In Proceedings of The Second International Workshop on Generative AI for Process Mining.
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Varvoutas, K. Neuberger, J., López, H.A. Streamlining the education of Declarative Process Management with Process DoCtoR”, at the International Conference on Business Process Management (BPM 2026). Demos and Resources. To appear.
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Towards Correct-by-Construction Legal Explanations for Intersymbolic Conversational Interfaces to Governmental Agencies, Thomas Hildebrandt, In proceedings of ISOLA 2026, to appear. Invited keynote talk on same topic
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Choreographing Event-based Reactive Systems with Dynamic Condition Response Graphs, T. Hildebrandt, M. Carbone, H.A.Lopez, S. Debois, J.C. Seco, T. Slaats. To appear in the book “Theory and Practice of Behavioural APIs “, Springer 2026/2027.
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Raina, Chalkidis, Hershcovich & Olsen. Can LLMs Reason in a Legally Meaningful Manner? A Small-scale Study on European Court of Human Rights Cases. AI for Law Workshop at ICML
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Hildebrandt et al. XHAILe: Explainable Hybrid AI for Computational Law and Accurate Legal Chatbots. Research Project Exhibition, CAiSE 2026. https://orbit.dtu.dk/en/publications/xhaile-explainable-hybrid-ai-for-computational-law-and-accurate-l/
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Chalkidis et al. Hybrid AI for Explainable and Accurate Conversational Agents in eGovernment. AIDA2J Workshop at ICAIL 2026. Preprint: https://arxiv.org/abs/2608.01346
- Zuckmantel, T., Zhou, Y., Düdder, B., Hildebrandt, T. (2025). DACEO: Declarative Asynchronous Choreographies with General Data-Dependent Event-Ordering and Objects. In: Di Giusto, C., Ravara, A. (eds) Coordination Models and Languages. COORDINATION 2025. Lecture Notes in Computer Science, vol 15731. Springer, Cham.
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Presentation of XHAILe at the OffDig Next 2026 conference, Copenhagen, September 7th, 2026: "Human in the Loop - AI du kan stole på", Thomas Hildebrandt https://dit.dk/offdignext/program/Program/2026/Thomas-Hildebrandt
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Presentation of XHAILe at the "KI i Offentlig sektor" conference, Oslo, September 8th, 2026. " Gennemsigtig Digital Lovgivning og Pålidelige eGov Chatbots med Hybrid Kunstig Intelligens", Thomas Hildebrandt. https://tankesmiengoforit.no/event/program-for-ki-i-offentlig-sektor-2026/
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Keynote at the X-by-Construction Meets Intersymbolic AI (XbC-IAI) track, ISOLA 2026, "Towards Correct-by-Construction Legal Explanations for Intersymbolic Conversational Interfaces to Governmental Agencies", Thomas Hildebrandt, https://programme.paperplane.services/event/462
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"First prototype chatbot and Conversational Hybrid AI architecture presented at AIDA2J WORKSHOP AT ICAIL 2026: Artificial Intelligence for Access to Justice" and available as a preprint.
- Thomas Hildebrandt visited Mila in Montreal, July 21-25, 2026, and gave a talk about XHAILe for the NLP Reading Group.
Supported by

The Innovation Fund Denmark has invested EUR 2.5 million in the XHAILe project.
Academic Project members
| Name | Title | Phone | |
|---|---|---|---|
| Ali Mohammed Ali Al-Laith | Assistant Professor | +4535326658 | |
| Amogh Raina | Research Assistant | +4535320009 | |
| Bolette Sandford Pedersen | Professor | +4535329078 | |
| Daniel Hershcovich |
Tenure Track Assistant Professor |
+4553338804 | |
| Henrik Palmer Olsen | Professor | +4535323219 | |
| Hugo-Andrés Lopez-Acosta | Associate Professor | ||
| Konstantinos Varvoutas | Postdoc | ||
| Manex Aguirrezabal Zabaleta | Associate Professor | +4535324829 | |
| Marieke Anne Heyl | PhD Fellow | ||
| Thomas Troels Hildebrandt | Professor | +4531425279 | |
| Tilman Zuckmantel | Academic Research Staff |
Project administration
| Name | Title | Phone | |
|---|---|---|---|
| Elisabeth Arup Fischer | Academic Officer | +4535322880 |
